Hi
I just started fiddling around with the mightyboosts that i ordered. I have one protecting a Raspberry Pi and programmed to shut off the Pi if external power is cut for more than 30 seconds.
But I've been wondering what will happen if power doesn't return for an extended period of time, won't the moteino completely discharge the LiPo, possibly damaging it?
I could put the moteino into some sleep mode to preserve battery life so that it would take months before the battery is harmed. Another Idea i had was putting a relay on the battery so that the moteino could disconnect the battery from the circuit. It would then be reconnected when external power returns.
Have any of you already solved this?
The working assumption is that you're using a LiPo with a built-in protection circuit that will shutoff power once the battery is discharged below a safe limit (I believe it's typically 3V). You should use a battery with a protection circuit to prevent this and overcharge condition.
Tom
Ahh, I totally forgot about that.
Well, that sorts that out, the only possible problem I can see now is the moteino emptying the battery, external power returning, raspberry turning on, external power going out again and the battery having only charged for a few seconds won't be able to supply the power needed.
But I seriously doubt that will happen.
Thanks for the reply Tom :)
Quote from: Steinarrr on April 30, 2017, 06:36:43 PM
... the only possible problem I can see now is the moteino emptying the battery, external power returning, raspberry turning on, external power going out again and the battery having only charged for a few seconds won't be able to supply the power needed.
But I seriously doubt that will happen.
ROTFLMAO! Nah, never could... ::)
Quote
Thanks for the reply Tom :)
You're quite welcome. Enjoy!